9. Ariana Grande

She swapped junk food for a plant-based diet and admits to having to do her research to find substitutes for protein-based foods.

Read on for more of your favorite celebs’ body transformations.

10. Jessica Simpson

The former Weight Watchers spokeswoman, 36, credits some of her 60-pound weight loss to chasing her kids around.

But the Women’s Health cover model admits the rest came with the help of her trainer, Harley Pasternak. She overhauled her diet by loading up on high-quality proteins and avoiding processed foods.

After originally considering breast reduction surgery, she opted against going under the knife after losing the baby weight naturally.

Simpson even has her own athleisure line, The Warm Up.

11. Miley Cyrus

The 23-year-old doesn’t miss the old Miley and attributes her weight loss to giving up gluten and milk products due to food sensitivities.

Essentially, these changes forced her to cut out the majority of junk food in her diet.

Cyrus is also a Pilates addict and frequently attends Winsor Pilates in LA.

12. Kendra Wilkinson

The former Playboy bunny was hesitant to have a second child after experiencing 60 pounds of weight gain and postpartum depression with her first baby Hank.

But the reality star has already managed to shed 55 pounds after giving birth to her daughter, Alijah, in 2014.

“Just weighed myself and I’m back to pre-lil Hank weight. Haven’t been here since then.” #fitfor30 #fuckya #meetinggoals, she wrote on Twitter.

Wilkinson follows a high-protein, low-carb diet and makes time every day for some type of exercise. Her exercise routine will be key to maintaining her post-baby weight loss as Wilkinson is reportedly working on a show with the Food Network.

13. Jordin Sparks

The American Idol star, 28, lost 30 pounds by sticking to her favorite workouts including Zumba and maintaining a sensible diet.